EDIT 2: For those that don't know, in the website Texas Metroplex Cosplay Coalition, there are somewhat backup plans since this year's Yulecon is cancelled. Here is the link: TMCC about Yulecon~
I don't know much about it but it should have more info soon.

Our forums are actually private, so nonmembers will be unable to view that thread. In previous years our holiday party has been held in the private homes of members, and has been a members + personal guests only get-together. So far there have been no discussion of opening it to the public, though anyone who is interested may join our forums. It's a great way to meet local cosplayers!